condition	mean	min	max
4 h after light	20.29035	18.8591	21.7216
8 h after light	19.11125	17.5988	20.6237
12 h after light	23.22015	21.4937	24.9466
4 h after dark	24.18905	16.6758	31.7023
8 h after dark	15.2156	11.7681	18.6631
12 h after dark	18.443649999999998	17.3784	19.5089